Brazil's health service has been pushed to the brink as coronavirus cases continue to climb. Some 66,570 people died of Covid-19 in March, more than double the previous monthly record, and the total number of Covid-19 related deaths is over 320,000. Yet President Jair Bolsonaro continues to oppose lockdowns and has been heavily criticised for his handling of the pandemic. There have also been problems with the rollout of Covid vaccines. Two Brazilian doctors, in Sao Paolo and the southern city of Porto Alegre, share their experiences during these challenging times.